&lt;title&gt;New type of IR to visible real-time image converter: design and fabrication&lt;/title&gt;

Sun, Fangkui; Yang, Maohua; Gao, Shan; Zhao, Shaorong

doi:10.1117/12.45786

Cited by 3 publications

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“…The design was much simplified, while the response was made faster a few years later, using polarizers and transparent electrodes. 4 Within twenty years since the first US patent was granted, a second one employing the luminescence phenomenon was successfully demonstrated to give the spatial resolution of the then-available CCD cameras and video rates. 5 Next, the capacity of the so-called perfect crystals, such as CdS, upon irradiation with the IR was shown to emit the secondary radiation in the visible.…”

Section: Ir-to-visible Convertersmentioning

confidence: 99%

Feasibility concept for dynamic IR-to-visible converter

2003

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We present preliminary results on the feasibility demonstration of using the rare-earth-doped silica as an IR-to-visible converter. Its principle of operation employs the up-conversion upon pumping with near IR radiation. The simulation results of the time-dependent 3-D heat transfer study demonstrate the spatial and temporal resolution of this transducer for the constant and impulse irradiation profiles, confirming the concept when the Er-doped silica fiber is in contact with a cold reservoir. The preliminary experimental results confirm the feasibility of using the converter for room temperature applications, that correspond to about 10-µm radiation. The error arising from the rare-earth dopant non-uniformity is estimated at +/− 1.5 C. Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/26/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx Proc. of SPIE Vol. 5076 273 Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/26/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx

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Section: Ir-to-visible Convertersmentioning

confidence: 99%

Feasibility concept for dynamic IR-to-visible converter

2003

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Heat transfer analysis of a dynamic infrared-to-visible converter

2003

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Heat transfer analysis of a dynamic IR-to-visible converter

et al. 2002

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We propose to use the rare-earth-doped silica as the IR-to-visible converter. We describe its principle of operation employing the up-conversion upon pumping with the near IR radiation. We developed a time-dependent 3-D heat transfer model for fiber geometry with finite element method. We present results ofthe study to determine spatial and temporal resolution ofthis transducer for the constant and impulse irradiation profile. We conclude that better temporal and spatial resolution is achieved when the fiber is in contact with a cold reservoir. The cold sink also assists in the rapid response ofthe device, as the latent image is quickly erased.

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<title>New type of IR to visible real-time image converter: design and fabrication</title>

Cited by 3 publications

References 0 publications

Feasibility concept for dynamic IR-to-visible converter

Feasibility concept for dynamic IR-to-visible converter

Heat transfer analysis of a dynamic infrared-to-visible converter

Heat transfer analysis of a dynamic IR-to-visible converter

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